Tool mounting



Mar. 3. 1925.

H. H. HACKETT TOOL MOUNTING Filed Sept. 26 1921 7 Sheets-Sheet l INVENI'OR wrtonun Mar. 3. 1925. 1,528,610

H. H. HACKETT v TOOL MOUNTING Filed Sept, 26, 1921 '7 Sheets-Sheet 2 H. H. HACKETT TOOL MOUNTING Mar. 3. 1925.

Filed Sept. 26, 1921 'TSheets-Shgat :5

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Mar. 3, 1925. 1,528,610 7 H. H. HACKETT TOOL MOUNTING Filed Sept. 26, 1921 v Sheets-Sheet 4 ATTORNEY Mar. 3, 1325. 1,528,610

H. H. HACKETT TOOL MOUNTING Filed Sept. 26, 1921 'r Shets-Sheet 5 n I mvzwron A110 RNIY 'H. H. HACKETT TOOL mourn-1nd 'iled Sept. 26 1921 7 Sheets-Sheet 6 Patented Mar. 3, 1925.

HERBERT H, HACKETT, OF BURCTDOEF, IDAHO.

TOOL MOUNTTENG.

Application filed September 26,

To all whom it may concern.

Be it known that 1 HERBERT H. Haonn'r'r, a citizen of the United States, residing at Burgdorf, in the county of Idaho and State of Idaho, have invented new and useful Impro vements in Tool Mountings, of which the following is a specification.

This invention relates to improvements in tool mounting mechanism, the principal ob ject of the invention being to provide means whereby a tool can be easily and quickly moved against, or withdrawn from, the work-piece and the tool removed and replaced by a new one when desired, so as to reduce the work of preparation to the minimum.

The invention is mainly designed for fluid pressure actuated tools, such as rock drills, where the tool must be turned at different angles and moved longitudinally to and from the work. It will of course be understood that I do not Wish to be limited to any particular kind of tool.

Another object of the invention is to provide a screw means for feeding the tool into its work and for adjusting the movable parts of the mechanism after they have been moved by hand to a certain position.

A still further object of the invention is to provide a supporting member rotatable about a vertical axis and a number of carriages on the supporting member with means for moving the carriages and for locking them in adjusted position.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be her inafter fully described, illustrated in the accompanying drawings and spccificially pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a side view of the invention.

Figure 2 is a plan view.

Figure 3 is a view of the front end.

Figure at is a longitudinal sectional view.

Figure 5 is a section on the line 5-5 of Figure 4.

1921. Serial No. 563,441.

Figure 6 is a section on line 6-6 of Figure 4.

Figure T is a perspective view of the stirrup 25.

Figure 8 is a plan view of the slip plate 80, and portions of the sectional nut 27.

Figure 9 is a sectional view through the secti nal nut and the stirrup andshowing the eccentric shaft 26 in elevation.

Figure 10 is detail view of the shaft 26.

Figure 11 is a transverse sectional view through said shaft.

-Figures 12 and 13 are detail views of the pivot post.

Figures 1% and 15 are detail views of the turn plate.

Figures 16 and 1'? are detail views of the frictional plate.

Figure 18 is an elevation of the clamping member and its housing.

*igure 19 is a section on the line 19-19 of Figure 18.

Figure 20 is a bottom plan view of Figure 18. V

Figure 21 is a. view of the spring handle 69 and its associated parts.

Figures 22, 23 and 2% are detail views of the turret member.

Figures 25. 26, 27, and 28 are detail views of the means for holding the screw shaft in position and for locking the ends of the auxiliary carriage in place.

In these views 1 indicates a part of a suitable base upon which the apparatus is rotatably mounted by means of its cone part 2 engaging an under cut opening in the has. This cone part is connected with a cross head 8 upon which the auxiliary carriage is slidably mounted by means of the guides and guideways 5. This auxiliary carriage 1 is of box-like shape as shown, with its ends removable. These ends are dove-tailed to the sides and the front end is removabl v held in place by means of the key 6 engaging grooves in the sides'and end at the bottom thereof and this key is held in place by the spring catch 7. The rear end can be held in place by screws or the like. The

bottom of the carriage 1; is provided with a slot 8 and serrated members 9 are ar ranged upon the bottom on each side of the slot. A yoke 10 1s slidably mounted. in the cross head 3 and a stem 11 is formed on the top of the yoke, this stem passing through the slot 8 and havin a corrugated nut 12 thereon for engaging with e ser rated members 9. An eccentric shaft 3 passes through the cross head and through the yoke, the projecting ends of the sla having connected therewith the handles 1''- which are of spring formation so that they will be held on the squared ends of the shaft by spring action. By the partial rotation of this shaft the yoke is moved downwardly to cause the nut 12 to engage the serrated members. The yol: is normally held in "aised position by means of the springs 15 located in openings in the yoke anl in carrying member 16 which engages t bottom of the yoke. Access can be had to these parts through an opening in the lower end of the cone part 2, the opening being normally closed by slide hus turning shaft 13 the carriage 4- can he lee to the cross head and by reversing the in ment of the shaft the springs will raise the yolze to release the nut 12 from the serrated members and thus permit. movement of the carriage.

The main carriage 18 is slidably mounted in the auxiliary carriage d )y means of the hides and guideway i9 and "his main cargo is provided with a boot 20 at its rear end which extends within the au:-;iliary carriage and is provided with a removable cover 20. This bootis provided wih aligned holes through which passes t screw shaft 21 rotatably mounted ii t auxiliary carriage by having its cnos tatably mounted in the ends of said carriage. The shaft is detachahly held in place by means of the sectional bearin block the two parts of which are 57' C 15. ably mounted in the rear end of the auxiliary c rriage and they are held in place by the sprin s 23 which engage recesses in said end. This block engages a groove 2% in the shaft. y separating the two parts of the blo shaft can be withdrawn from the an; carriage. A stirrup 25 is slidably mounted in the boot and is movably supporter by th eccentric shaft 26 wh ch is arrange".

the walls of the auxiliary carriage.

tional nut 27 is carried by the stirrir 7 3 that toe two parts of this nut arr ed to engage the screw shaft 21. The nut I. norn'ialv held free of the shaft, however, by

nl"'te and screw shaft. Thus the nut is caused to grip the shaft so that rotary movement of the sh aitt will move the main carriage from the "iliary carriage. The journals in the e for the eccentric shaft 26 are formed as to permit the shaft to be withdrawn and this shaft is rotated by means of the handle Pa l which engages the square projecting ends of said shaft. This handle n also be used for moving the main carfr In the auxiliary carriage when the 7 ts of the nut are free of the shaft as t '7 position o the pats the handle is in horizontal posit on and is in engagement with the auxiliary carriage so that the two iage in front of the boot and said post is .n'ovided vith the annular grooves 36 and 'he vertical groove 3. Recesses 38 are. ormeu in the main carriage adjacent said post to receive the springs 39 and the guides 10 of the friction plate 41, said plate hav ing a central opening 12 to receive the post. -3. turn plate has an opening 14: adjacent its rear end to receive the post and lugs 45 project into said opening, these lugs being a to engage the lower annular at the bottom of the post to hold l in position. In placing the plate over the postthe lugs pass down the vertical grooves. The turn plate at its front end is provided with an opening L6 hav ing side extensions .16 and about midway the ends of the plate a key hole shaped opening 1-? is for ned in the plate. The front part of the plate is offset in a lower plane from the rest of the plate. A headed stud -8 projects upwardly from the plate adjacent its rear end. A turret member 49 is seated on the rear part of plate 43 and is detachably connected therewith by the key hole opening 429 engaging lug &8. This turret member is provided with the lugs 50 for engaging the annular grooves 36 in the post. he turret member is provided with a fiat extension 51 at its forward end which is provided with a key hole shaped opening 59- for registering with the opening l? in plate and the end of this extension is provided with an upwardly extending lip 5-3. The turret member is provided fith trout and rear openings and the rear end is rounded and the extended top 1S lUU provided with the notches 54 for a purpose to be hereinafter described. The front end of the member is recessed, as at 55, to receive the handle 56 of the tool which is shown generally at A. A housing 57 is provided with a headed stud 58 on its bottom which engages the openings 47 and 52 in plate 43 and the extension 51 so that said housing is detachably connected with both the turn plate 43 and the extension of the turret member. A spring propelled locking member 59 embraces the housing and has its cross piece recessed, as at 60, for engaging the front part of the handle 56 of the tool so that said handle is held in the re cess of the'turret membe and the recess 60 of said locking member. The locking member is provided with tubular guides 61 which engage recesses in the housing 57 and the springs 62 are carried by said guides. These springs tend to force the locking member rearwardly towards the turret member. The arms 63 of the locking member extend along the sides of the housing 57 and their extremities are notched, as at 64, for receiving the downwardly bent ends 65 of the spring cover 66 of the housing. hen said ends engage the notches the locking member is held in inoperative position upon the housing and the handle of the tool can be moved from between the locking member and the turret member.

The means for moving said locking member to its inoperative position comprises a lever 67 having an enlarged end provided with an opening for fitting over the post 35. The outer corners of said enlarged end are adapted to engage the handle 56 when the lever is moved to one side or the other from its central position and this movement of the handle 56 will move the locking member forwardly until its notches are engaged by the end 65 of the spring cover 66. This lever is provided with an arc-shaped plate 68 which slides over the curved front of the turret member and it is also provided with a spring handle 69 having a lug 7O thereon for engaging the notches 54 in the cover of the turret member for holding the lever in a position to one side or the other of its central position. The spring in the handle will cause the lug to enter the notch as will be understood.

A bracket 71 is slidably mounted on one of the bolts 7 2 of the tool A and this bracket is adapted to extend through the opening 46 in the front end of the platetS. It is provided with side notches for engaging the side walls of the opening, thepart below the notches being adapted to pass through the extensions l6 of said opening to permit the bracket to be placed in and withdrawn from said opening. This bracket is also provided with a tongue 73 at its extremity for engaging a recess 74 in the front end of the main carriage to hold the tool, the plate 43 and its associated parts in alignment with the carriage. However, when the lever 67 is moved to one side or the other of the central position so as to press the tool and its handle forward the said tongue will leave the recess and thus permit the parts to be swungv upon the post out of alignment with the carriage. A spring 75 is placed on rod 7 2 and tends to hold the bracket 71 in its forward position in opening 46. a i

The bottom of the boot is provided with opposed inclines 76 which are adapted to strike the top of nut 12 when said nut is in raised position but to clear said nut when the same is in lowered position. By moving the main carriage, after the same has been freed fromthe screw shaft, to a position where the bottom of the boot will engage the nut and then manipulating the sectional nut 27 to cause it to grip the screw shaft the auxiliary carriage can be caused to be moved by the rotation of the screw shaft as the engagement of the boot with the nut will prevent movement of the main carriage so that the shaft will move longitudinally through the nut and carry the auxiliary carriage with it. i

The friction plate 41 will tend to hold the turret member and turn plate 4E3 together by friction and to press their lugs against the walls of the grooves in the post.

It will thus be seen that the entire apparatus can be rotated about a vertical axis so as to place the tool in the desired "position. The auxiliary carriage has sliding movement upon the crosshead and the main carriage has sliding movement in the auxiliary carriage so that the tool can be carried to a point a considerable distance from its starting point. It will also be seen that the tool can be easily and quickly moved against its work by releasing the nut from the screw shaft to permit the carriage to be shoved by hand for a quick adjustment of the tool. Then by looking the nut upon the shaft further adjustment can be made by turning the shaft. This shaft is provided with a crank 21 for rotating it. The. auxiliary carriage can also be moved quickly by hand by releasing the nut 12 from the rack by the shaft This auxiliary carriage can also be moved by the worm shaft, as before explained.

By moving the plate 43 and its associated parts including the tool by lever 67 the tool can be moved into position where a new bit can be placed therein or the entire tool removed and a new one substituted therefor.

All the parts can be readily removed and disassembled for the purposes of substituting new parts or repairing orcleaning the same. i

It is thought from the "foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such-changes fall within thescope of the appended claims.

What I claim is:-

1. An apparatus of the class described comprising asupport, an auxiliary carriage slidably mounted on said support, means for locking the said carriage in adjusted position, a main carriage 'slidably mounted in the auxiliary carriage, a screw shaft in the auxiliary carriage, a sectional nut connected with the main carriage and engaging said shaft, means for'separating the parts of the nut to free the same fromthe shaft and means for supporting a tool from the main carriage.

2. An apparatus of the class described comprising asupport, an auxiliary carriage slidably mounted on the sup-port, means for locking the carriage in adjust-ed position, a main carriage slidably mounted in the a'uxiliary carriage, a boot on the main carriage extending into the auxiliary carriage, a screw shaft j o-urnaled in the auxiliary carriage and passing through the boot, a stirrup in the boot, an eccentric shaft journaled in the boot and from which the stirrup is hung, a sectional nut supported by the stirrup for engaging the shaft, a. part on the eccentric shaft for moving downwardly one part of the nut when the stirrup is moved upwardly for raising the other part of the nut.

3. An apparatus of the class described comprising a support, an auxiliary carriage slidably mounted on the support, means for locking the carriage in adjusted position, a main carriage slidably'mounted in the auxiliary carriage, a boot on the main carriage extending into the auxiliary carriage, a screw shaft journaled in the auxiliary carriage and passing through the boot, a stirrup in the boot, an eccentric shaft journaled in the boot and from which the stirrup is hung, a sectional nut supported by the stirrup for engaging the shaft, a part on the eccentric shaft for mov-ingdownwardly one part of :the nut when the stirrup is moved upwardly for raising the other part of the nut and a handle connected with the eccentric shaft for actuating the same and for moving the main carriage when the nut is freed from the screw shaft.

4. An apparatus of the class described comprising a support, an auxiliary carriage slidably mounted upon thesupport, means for locking the carriage in adjusted position, a main carriage slidably mounted in theauxiliary carriage, a screw shaft in the auxiliary carriage, a sectional nut carried seesaw by the main carriage for engaging the shaft, means for separating the parts of the nut to release the same from the shaft and means for removably holding the shaft in the auxiliary carriage.

An apparatus of the class described comprising a support, an auxiliary carriage slidably mounted thereon, means for 10c ing the carriage in adjusted position, such means including an abutment, a main carriage slidably mounted in the auxiliary carriage, a screw shaft jour naled in the auxiliary carriage, a sectional nut carried by the main carriage for engaging the shaft, means for separating the parts of the nut to free the same from the shaft, a part on the main carriage for engaging the abutment when the locking means for the-auxiliary carriage are in inactive position so that said auxiliary carriage can be moved by theshaftand nut after the nut has been placed in engagement with the shaft.

6. An apparatus of the class described comprising a cross head, an auxiliary carriage slidably mounted thereon, a spring controlled yoke in the crosshead having a part thereon for engaging a part of the carriage to lock the same against movement, an eccentric shaft passing through the cross head for moving the yoke into locking position, a handle connected with the shaft and a main carriage slidably mounted on the auxiliary carriage.

7. An apparatus of the class described comprising a crosshead, an auxiliary carriage slidably mounted thereon, means for locking the carriage to the cross head, said cross head-having a covered opening in its bottom for permitting access to the locking means, means for removably securing one end of the auxiliary carriage in position, a screw shaft journaled in the carriage, means forremovably holding said shaft in position, amain carriage slidably mounted in the auxiliary carriage and removable therefrom when the end of the auxiliary carriage is removed, a sectional nut carried by the main carriage for engaging the screw shaft, meansfor actuating the nut and means for removably supporting the nut and its associated parts in the main carriage. 8. An'apparatus of the class described comprising a support, an auxiliary carriage slidably mounted therein,'a main carriage sli'dably mounted in the auxiliary carriage, a tool supporting plate mounted to rotate upon a vertical axis on the main carriage. tool holding means supported by the said plate, means for detachably connecting said parts with the main carriage and manually operated means for moving the parts about a vertical axis and for locking and unlocking the tool to the tool holding means.

9. An apparatus of the class described comprising a support, an auxiliary carriage slidably mounted thereon, a main carriage slidably mounted in the auxiliary carriage, a poston the main carriage, a turn plate rotatably and removably mounted on the post, a turret member detachably connected with the plate and with the post,. means for detachably connecting a tool with the plate, a spring latch member detachably connected with the turret member and. the

plate for clamping a part of the tool against the turret member and a hand operated part associated with the turret member and rotatable about the post for moving the spring latch member into inoperative position and for swinging the parts around the post.

In testimony whereof I afiix my signature.

HERBERT H. HACKETT. 

